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Method for identification of stainless steel

Release time:2017-10-27 10:42:34  Viewed:

With the development of economy, the use of stainless steel becomes more and more extensive, and People's Daily life is closely related to stainless steel, but many people do not know enough about the performance of stainless steel, and do not know much about the maintenance of stainless steel. Most people think stainless steel is never rusted. In fact, the reason why stainless steel has good corrosion resistance is that a passivating film is formed on the surface, which exists in the form of more stable oxide in nature. That is to say, stainless steel, although different conditions of use, different degrees of oxidation, but ultimately oxidation, this phenomenon is often called corrosion.




The stainless steel parts processing factory tells you, stainless steel is to be able to bear the air, steam, water and so on weak corrode medium and acid, alkali, salt and so on chemical etching medium corrode of steel, call not rust to bear acid steel. The following introduces several stainless steel identification skills for your reference.




1. Potion detection method: at present, there are several chemicals for detecting stainless steel on the market. When one of them drops onto the surface of stainless steel, it will become dark brown at 201 and red at 304.




2. Price estimation method: fully understand the market of each steel type. If the price of the same steel type varies greatly, it should consider whether it is "li ghost".




3. Credibility of traders: in the market, companies with good integrity will still do so, and it is better to choose more traders to make comparison, which is also a way to prevent "li ghost".




4. Contract agreement law: the manufacturer of stainless steel parts tells you that in the transaction of stainless steel, the contract with a relatively large amount shall be signed, indicating steel type, quantity, material, time, delivery date and responsibility for breach of law and discipline. In case of material discrepancy, the loss can be recovered through negotiation or law.


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